Calphalon Unison Nonstick Cookware is constructed to meet Calphalon’s strict standards for performance and durability, crafted from a disc of virtually pure, medium-gauge, hard-anodized aluminum for even heating.
In 1968, Calphalon created the original hard-anodized aluminum cookware, an innovation immediately embraced by the professional culinary community and later by home cooks seeking commercial performance.
Hard-anodized aluminum cookware is exceptionally durable. In fact, it is over 80% harder than stainless steel, making it tough enough to stand up to the rigors of a busy kitchen. It is safe for use in both the oven and the broiler.